Single-trigger mechanism for double-barrel guns.



No. 802,314. PATENTED OCT. 17, 1905. H. PRICE.

SINGLE TRIGGER MECHANISM FOR DOUBLE BARREL GUNS.

APPLICATION FILED JUNE 1, 1904.

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No. 802,314. PATENTED 0011x1905.

SINGLE TRIGGER MECHANISM FOR DOUBLE :BARREL'GUNS.

IAPPLIOATION FILED mm: 1, 1904.

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pairs srArEs HARRY PRICE, OF HANDSWORTH, ENGLAND.

SINGLE-TRIGGER MECHANISM FOR DOUBLE-BARREL GUNS.

Specification of Letters Patent.

Patented Oct. 17, 1905.

Application filed June 1, 1904. Serial No. 210,727.

To ctZZ whom it may concern:

Be it known that I, HARRY PRICE, asubject of the King of Great Britain, residing at 38 Linwood road, Handsworth, in the county of Stafiord, England, have invented certain new and useful Improvements in Single-Trigger Mechanism for Double-Barrel Guns, of which the following is a specification.

My invention relates to improvements in single-trigger mechanism for double-barrel guns, and has for its object improved means whereby the action of opening and closing of the breech of the gun places the trigger mechanism in the position to fire the right barrel; also, improved means whereby upon the fall of either of the hammers the trigger mechanism is placed in position for firing the other barrel; also,improved means whereby the accidental or involuntary firing of the remaining barrel during the recoil from the first firing is prevented; also, improved combination of these last-mentioned means with the safety mechanism. These my improved means apply to side as well as what are known as hammerless gun-locks.

I illustrate this my invention in the accompanying drawings, upon which are figures and numbers of reference, similar numbers referring throughout the several views to the same thing or part, and in which Figure 1 shows a part-sectional side view of such parts of an interior gun-lock mechanism as may be necessary to explain this my invention. Fig. 2 is a part-sectional plan view of the mechanism, showing the position of the parts as seen when ready for firing the right-hand barrel. view, and Fig. 4 a plan view, of certain important parts of this my invention, such as the slide which is operated by the falling of the hammer in order to move the switch from the right-hand barrel to the left. -Fig. 5 is a detached side View of the breech-locking bolt. Fig. 6 is a detail view of the left hand slide, which is operated by the fall of the hammer. Fig. 7 is a detail view of the right-hand slide, which is operated by the falling of the hammer. Fig. 8is aside view, and Fig. 9 a plan view in detail,of the switcharm. Fig 10 is a sectional plan view of a portion of the switch-arm and a V-spring which acts thereon. Fig. 11 is a part-sectional view showing the trigger in connection with the recoil mechanism. Fig. 12 shows the position of the switch-arm during the recoil action.

Fig. 3 is an enlarged side Fig. 13 is a view of the parts of an outside gun-lock, showing this my invention as applied to it.

Only such parts of the gun and its mechanism are shown as may be necessary to explain this my invention, in which 16 represents the breech-block, in which are carried the usual partssuch as,the right-hand hammer 17 and left-hand hammer 17, its spring 18, breech-bolt lever 19, trigger 20, which is pivoted at 21 to the trigger-block 22. 23 is a switch-arm having a vertical stem 24, upon which is shaped a V edge 25. This switch-arm is pivoted at 26 to the trigger. 27 is a spring secured at 28 to the post 29, which forms part of the trigger. This spring is furnished with a V-shaped part at 30, which acts upon the V-shaped part 25 of the switch-arm in such a manner that when the said arm is pushed slightly to the one or the other side from the position shown in Fig. 10 the said spring acts upon the sides of the part 25 and completes its movement. 31 is a slide which is carried upon the right-hand side of the trigger-block 22, and 32 is a slide carried upon the left-hand side of the trigger-block 22. At the forward end of the slide 31 is formed the incline surface 33, and the rear end 34 of the said slide is made to operate against the part 35 of the switch-arm when the right-hand hammer has fallen by the raising of the trigger and while the trigger is in its raised position. Upon the slide 32 is also an incline surface 36, which is operated upon by the lefthand hammer, the said slide having also the rear part 37, which, upon the firing of the left-hand barrel, pushes against the part 38 of the arm 23, so as to turn it toward the right hand sear-lever 39. 40 is the left-hand searlever. Upon each of the slides 31 and 32 are similar inwardly-projecting pegs 41, against the rear side of which presses the spring 42, which is secured at 43 to the trigger-block 22, so as always to press the said slides forward toward the hammer. Upon the hammers 17 17 are provided similar inwardly-projecting pegs 44, which act upon the surfaces 33 and 36 of the aforesaid two slides. 45 is the breech-locking bolt which is operated in the usual manner by the lever 19 and its crank 46. These parts are the usual well-known parts, and therefore. are not further. illustrated. Uponlthe bolt 45 is the projection 47, which rests against the peg 41 upon the slide 32, so that when the lever 19 is turned to theoneside in order to unlock the breech the bolt 45 in its movement carries rearward the part 47 against the peg 41 upon the slide 32, and thus forces the said slide rearward, which in its turn forces the part 37 against the part 38, so as to partially rotate the stem 24 until the edge at 25 has just passed the edge of the spring 27, when the said spring completes the part rotative movement of the arm 23 until the part 48 is carried beneath the sear-lever 39that is, ready for firing the right barrel. Hence when the trigger is raised the sear-lever 39 is raised so as to release the hammer 17 from bent, and the righthand barrel is fired. While the trigger is thus held in its raised position, the movement of the said hammer takes place, and with such movement the peg 44 of the right-hand hammer moves upon the incline surface 33, which causes the slide 31 to move rearward, and by means of the part 34 acting against the part 35 of the arm 23 the said arm is moved over to the left for firing the lefthand barrel. (See Fig. 4.) The left-hand barrel then having been fired the gun is opened for recharging, in the act of which the arm 23 is pushed back to beneath the right-hand sear 39 by means of the bolt in the manner already described.

As is well known, in single-trigger mechanism-there is danger of involuntarily firing the remaining barrel under the recoil action due to firing the first barrel, and my improved means obviate this difiiculty as follows: Upon the trigger-plate is an upright post 51, upon which is placed the sliding block 52, the said post 51 slidably fitting in the slot-hole 53, formed in the said block 52. Between the end of the slot-hole 53 and the post 51 is placed a light spring 54, which tends always to keep the block 52 in its rearward position. At the forward end of the block is the projection 55, which coacts with the projection 56, formed upon the trigger 20. Now when the trigger is raised (see Fig. 11) in order to fire either of the barrels the said firing causes the gun to recoil, and in its sudden movement the projection 56 upon the trigger is carried over the projection 55, due to the inertia of the block 52. It will also be noticed, as before described, that while the trigger is in this raised position the switcharm 23 is moved over toward the opposite sear, but inasmuch as the trigger is thus kept in its raised position during this involuntary action the said arm 23 would merely rest against the end of the sear-lever, (see Fig. 12,) and thus no action upon the said sear-lever can take place until the danger from recoil has subsided and the block 52 brought rearward by its spring 54, when the trigger will be lowered, and immediately this latter takes place the part 48 or the part 49 of the arm 23 is then free to move beneath the sear-lever ready for firing the opposite barrel.

The safety mechanism is constructed as follows: 57 is the usual safety-slide, which is moved rearward by the crank 46 upon the turning-lever 19, and in its rearward movement turns the lever 58 upon its pivot 59, and in so doing the block 52 is moved forward by the end 60 of the lever 58, so that the projection 55 is now pushed over the projection 56, which is formed upon the trigger 20, and thus prevents the possibility of the trigger being raised until the usual thumb-piece 61 has been pushed forward so as to permit the return movement of the block 52that is, to place it out of safety.

If it is desired to fire the left barrel before firing the right, the switch-arm 23 is moved to the left by means of the sliding push-pi ce 62, to whichis attached the plate 63, upon which is carried the upstanding piece 64, which in its movement presses against a part 35 of the arm 23, and thereby turns it over to the left sear.

Referring now to Fig. 13, it will be seen that this represents what is known as a sidelock action and is merely. illustrated to show that the peg 44 is essentially the same as those carried upon the hammers already described and in which such peg operates upon the incline surface 65 of the slide 66, the latter being the equivalent of either of the previouslydescribed slides 31 and 32 and in a similar manner operating the switch-arm 23. The mounting of the parts 23 and 66 and the various other parts (not shown) will be to all intents and purposes carried out in the manner shown and described in relation to the previous figures.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a single-trigger mechanism for double-barrel guns, the combination of the hammers having a projection 44, a trigger-block having slides thereon provided with inclined edge surfaces with which the projections 44 operate, a switch-arm pivotally carried by the trigger, the rear ends of the slides being adapted to move the switch-arm about its center, and sear-levers with which the switch-arm cooperates, the said switch-arm being capable of moving from one lever to the other and adapted to hold the hammers in bent or to release them.

2. In a mechanism of the class set forth, the combination of a breech-locking bolt having an angular extension, a trigger-block carrying a slide having an inclined face and provided with a peg against which said extension bears and has a pushing operation, a trigger having a switch-arm pivotally mounted thereon provided with a surface 38 adapted to receive pressure from the extremity of the slide opposite that carrying the peg, the switcharm being horizontally disposed and having a V-shaped part, and a spring having a V- shaped part cooperating with the similar part of the switch-arm.

3. In a mechanism of the class set forth, the combination with hammers, a trigger, a trigger-block, and sear-levers, the trigger-block having slides with inclined ends, of a horizontally-disposed switch-arm pivotally carried by the trigger and having an angular member, a post forming part of the trigger, a spring secured to said post and having an angular surface coacting with the member of the switch-arm, the latter being horizontally disposed, and projections 44 with which the inclined surfaces of the slides cooperate.

4. In a mechanism of the class set forth, the combination of a trigger means having a terminal projection 56, a horizontally-disposed switch-arm pivotally carried by the trigger means and cooperating with the latter, searlevers with which the switch-arm also coopcrates, a post 51, a block 52 slidably disposed about the post, the said block having a terminal shouldered portion adjacent to the projection 56 to engage the latter, means enabling the said sliding block to engage under the trigger to obviate a second pull and also to engage over the trigger for safety, and a spring engaging the post and block.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

HARRY PRICE.

I/Vitnesses:

J. BERNARD HAYWARD, T. VERNON FELLOWS. 

